磨细高硅型铁尾矿对混凝土抗压强度影响试验
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摘要
指出了利用尾矿制备建筑材料是尾矿综合利用的最重要途径,粉磨后的高硅型铁尾矿可作为辅助胶凝材料用于制备混凝土。将辽宁某矿山高硅型铁尾矿进行机械力活化后用于混凝土辅助胶凝材料,实验结果表明:粉磨3.5h后,未掺减水剂时,尾矿对水泥取代量为37%时能达到C30混凝土强度等级;当掺有高强减水剂时,尾矿对水泥取代量为48%时还能达到C30混凝土强度等级。
Preparing the building material by utilizing tailings is the most important way of comprehensive utilization of tailings.After the fine grinding,the high silicon iron tailings can be used as supplementary cementious material to prepare concrete.In the article,an iron tailing of a certain mine in Liaoning province is chosen to be activated through a mechanical method to serve as the supplementary cementious materials for preparing concrete.The results show that after the grinding for 3.5hwithout adding the water reducing agent,the strength of the concrete can achieve the level of C30 when iron tailing replaces 37% of cement;when adding high-strength water reducing agent,the strength of the concrete can achieve the level of C30 when iron tailing replaces 48% of cement.
Preparing the building material by utilizing tailings is the most important way of comprehensive utilization of tailings.After the fine grinding,the high silicon iron tailings can be used as supplementary cementious material to prepare concrete.In the article,an iron tailing of a certain mine in Liaoning province is chosen to be activated through a mechanical method to serve as the supplementary cementious materials for preparing concrete.The results show that after the grinding for 3.5hwithout adding the water reducing agent,the strength of the concrete can achieve the level of C30 when iron tailing replaces 37% of cement;when adding high-strength water reducing agent,the strength of the concrete can achieve the level of C30 when iron tailing replaces 48% of cement.
引文
[1]肖力光,伊晋宏,崔正旭.国内外铁尾矿的综合利用现状[J].吉林建筑工程学院学报,2010,27(4):22~26.
[2]中国资源综合利用协会.2009年度大宗工业固体废弃物综合利用发展报告[M].北京:中国轻工业出版社,2011.
[3]张璐,吕广忠.金属矿山充填采矿法中充填材料的应用及展望田[J].现代矿业,2010(1):20~22.
[4]孟跃辉,倪文,张玉燕.我国尾矿综合利用发展现状及前景[J].中国矿山工程,2010,3(5):4~9.
[5]唐达高.铜尾矿在水泥生产中的应用研究[J].中国资源综合利用,2005(10):17~20.
[6]Meyer C.The greening of the concrete industry[J].Cement Concrete Composite 2009(31):601~5.
[7]Mehta PK,Monteiro PJM.Concrete:microstructure,properties,and materials[M].3rd ed.New York:McGraw-Hill,2006.
[8]徐丽,吴辉,郭珍妮,等.利用微磨球效应制备超高强铁尾矿混凝土[J].金属矿山,2010(12):162~166.
[9]陈鼎,陈振华.机械力化学[M].北京:化学工业出版社,2008(4):42~55.
[10]吴其胜.无机材料机械力化学[M].北京:化学工业出版社,2008(4):159~161.
[11]陈梦义,李北星.铁尾矿粉的活性及在混凝土中的增强效应[J].金属矿山,2013(5):164~168.
[12]刘数华,申海莲.粉煤灰对混凝土抗渗性能的影响[J].粉煤灰综合利用,2004,5(2):30~31.
[2]中国资源综合利用协会.2009年度大宗工业固体废弃物综合利用发展报告[M].北京:中国轻工业出版社,2011.
[3]张璐,吕广忠.金属矿山充填采矿法中充填材料的应用及展望田[J].现代矿业,2010(1):20~22.
[4]孟跃辉,倪文,张玉燕.我国尾矿综合利用发展现状及前景[J].中国矿山工程,2010,3(5):4~9.
[5]唐达高.铜尾矿在水泥生产中的应用研究[J].中国资源综合利用,2005(10):17~20.
[6]Meyer C.The greening of the concrete industry[J].Cement Concrete Composite 2009(31):601~5.
[7]Mehta PK,Monteiro PJM.Concrete:microstructure,properties,and materials[M].3rd ed.New York:McGraw-Hill,2006.
[8]徐丽,吴辉,郭珍妮,等.利用微磨球效应制备超高强铁尾矿混凝土[J].金属矿山,2010(12):162~166.
[9]陈鼎,陈振华.机械力化学[M].北京:化学工业出版社,2008(4):42~55.
[10]吴其胜.无机材料机械力化学[M].北京:化学工业出版社,2008(4):159~161.
[11]陈梦义,李北星.铁尾矿粉的活性及在混凝土中的增强效应[J].金属矿山,2013(5):164~168.
[12]刘数华,申海莲.粉煤灰对混凝土抗渗性能的影响[J].粉煤灰综合利用,2004,5(2):30~31.